Zenith XBR413 - Block Diagrams

FUSE
(F101)
NOISE FILTER
BLOCK
(C101,L102,
L101, C102)
SNUBBER
BLOCK
(D103,C115,C116
,R112,R115)
DRIVE & S/W BLOCK
(IC104, D104, R113,
C117,C114)
BD101
TH01
Y-CAP
C110
Y-CAP
C111
+
BR BL
(BK)(WH)
2.5V
3.3V
TO VDR
(P102)
C103
12V
5.0V
TO LOADER
(P103)
FD( +)
FD(-)
-28VA
TO VCR
(P101)
!
!
!
!
5.3VA
5.0V
Cap Vcc
12VA( DRUM)
33V
REG 12V
PWR CTL 'H'
HSR 'H'
DVD PWR CTL
5.0V
SNUBBER
BLOCK
(D101,C105
C106,R103)
DRIVE & S/W BLOCK
(IC101, D102, R105,
C108,C112)
T101
T102
!
!
PHOTO COUPLER
(IC102)
ERROR AMP
(IC103)
FEED-BACK
BLOCK
R121,R122,
C121,R123.
R124.R125
R126)
!
RECTIFIER &
SMOOTING BLOCK
(D128,C133,R130)
RECTIFIER &
SMOOTING BLOCK
(D127,C131,L125,C132)
RECTIFIER &
SMOOTING BLOCK
(D125,C139,L127,C140)
RECTIFIER &
SMOOTING BLOCK
(D124,C129)
RECTIFIER &
SMOOTING BLOCK
(D123,C126,L124,C127)
RECTIFIER &
SMOOTING BLOCK
(D122,C123,L123,C125)
PHOTO COUPLER
(IC105)
ERROR AMP
(IC106)
FEED-BACK
BLOCK
R131,R132,
C141,R133.
R161.R162
R163)
!
12V REG & S/W Block
(IC157,R156,C155)
-12V
12V
1.8V
8.7V
TO FAN
(P103)
RECTIFIER &
SMOOTING BLOCK
(D129,C128,R147)
RECTIFIER &
SMOOTING BLOCK
(D130,C137,R146)
5.0V REG & S/W Block
(IC151,R151,C151)
1.8V REG & S/W Block
(IC160,R159,C152)
3.3V REG & S/W Block
(IC154,R154,C154)
RECTIFIER &
SMOOTING BLOCK
(D126,C136,L122,C130)
RECTIFIER &
SMOOTING BLOCK
(D121,C122,L121,C124)
HSR S/W Block
(Q120,ZD153,C135,
R144,R145,D155,C157)
12V REG & S/W Block
(Q126,R150,ZD152,
C156,C153)
5.0V S/W Block
(Q124,R140,R135,R136
D134,C134)
33V S/W Block
(Q123,R143,R134)
HSR CTL Block
(Q121,Q122,R141)
PWR CTL Block
(Q125,R137,R138)
5 6 7 8
5
1
2
3
6 7 8
2
3
3-20 3-21
BLOCK DIAGRAMS
1. POWER(SMPS) BLOCK DIAGRAM